<template>
    <div>

        <!-- 面包屑导航 -->
           <el-breadcrumb separator-class="el-icon-arrow-right">
              <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
              <el-breadcrumb-item>数据统计</el-breadcrumb-item>
              <el-breadcrumb-item>数据报表</el-breadcrumb-item>
           </el-breadcrumb>

        <!-- 卡片视图 -->
        <el-card>
            <!-- 为Echarts准备一个具备大小（宽高）的Dom -->
            <div id="main" style="width: 100%;height: 400px"></div>
        </el-card>
    </div>
</template>

<script>
// 导入echarts
// import echarts from 'echarts'
import _ from 'lodash'
export default {
    data(){
        return{
            // 需要合并的数据
          options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        }
    },
    created(){

    },
    async mounted(){
    //   页面元素已经被挂载
    // 初始化echarts实列
    let echarts = require('echarts')
      var myChart = echarts.init(document.getElementById('main'));

      const {data:res} = await this.$http.get('reports/type/1');
      if(res.meta.status != 200) return this.$message.error('获取折线图数据失败')
    //   准备数据和配置项
        const result =  _.merge(res.data,this.options)
      myChart.setOption(result)
    //   展示数据
    },
    methods:{
      
    }
}
</script>

<style lang="less" scoped>

</style>